{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2007:BUUBTXGSDSNEWPRDREGRZC2XIO","short_pith_number":"pith:BUUBTXGS","canonical_record":{"source":{"id":"0706.1349","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"nucl-th","submitted_at":"2007-06-10T10:57:10Z","cross_cats_sorted":[],"title_canon_sha256":"3eb70f371a619c50331509c0118185c2b7c0af2934db5bc9f2b576e1439d3883","abstract_canon_sha256":"9b326ab6dca16e61210cbdc1977d91f5f61061cb5ee08822f518d43174397ae9"},"schema_version":"1.0"},"canonical_sha256":"0d2819dcd21c9a4b3e23890d1c8b57438812b8241c9e667ff4037ee05b17561e","source":{"kind":"arxiv","id":"0706.1349","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0706.1349","created_at":"2026-07-04T15:24:18Z"},{"alias_kind":"arxiv_version","alias_value":"0706.1349v1","created_at":"2026-07-04T15:24:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0706.1349","created_at":"2026-07-04T15:24:18Z"},{"alias_kind":"pith_short_12","alias_value":"BUUBTXGSDSNE","created_at":"2026-07-04T15:24:18Z"},{"alias_kind":"pith_short_16","alias_value":"BUUBTXGSDSNEWPRD","created_at":"2026-07-04T15:24:18Z"},{"alias_kind":"pith_short_8","alias_value":"BUUBTXGS","created_at":"2026-07-04T15:24:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2007:BUUBTXGSDSNEWPRDREGRZC2XIO","target":"record","payload":{"canonical_record":{"source":{"id":"0706.1349","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"nucl-th","submitted_at":"2007-06-10T10:57:10Z","cross_cats_sorted":[],"title_canon_sha256":"3eb70f371a619c50331509c0118185c2b7c0af2934db5bc9f2b576e1439d3883","abstract_canon_sha256":"9b326ab6dca16e61210cbdc1977d91f5f61061cb5ee08822f518d43174397ae9"},"schema_version":"1.0"},"canonical_sha256":"0d2819dcd21c9a4b3e23890d1c8b57438812b8241c9e667ff4037ee05b17561e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:24:18.385853Z","signature_b64":"Q2vhj6f7mdYoZ6c8XBB0B5Cgxjy0lXvMT6nbP3KUQxaJDhoRakdOGpuKoALjttqYacOcaVx2IEWLCBhCD/WACw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0d2819dcd21c9a4b3e23890d1c8b57438812b8241c9e667ff4037ee05b17561e","last_reissued_at":"2026-07-04T15:24:18.385472Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:24:18.385472Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0706.1349","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T15:24:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"13MFlsmJflmxXrNGuTi1wbvOMjasTD9i997kv174LlcetiYcI0h9BUZEBerdZ3ynLVfc0yjIuI8qFTUxR7O9Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T23:01:17.074381Z"},"content_sha256":"664a8a1e053e1a0e56b48659d3ebbe53463480017d45eb69436b2c08de38bd02","schema_version":"1.0","event_id":"sha256:664a8a1e053e1a0e56b48659d3ebbe53463480017d45eb69436b2c08de38bd02"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2007:BUUBTXGSDSNEWPRDREGRZC2XIO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Improved quark mass density- dependent model with quark-sigma meson and quark-omega meson couplings","license":"","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"Chen Wu, Ru-Keng Su, Wei-Liang Qian","submitted_at":"2007-06-10T10:57:10Z","abstract_excerpt":"An improved quark mass density- dependent model with the non-linear scalar sigma field and the $\\omega$-meson field is presented. We show that the present model can describe saturation properties, the equation of state, the compressibility and the effective nuclear mass of nuclear matter under mean field approximation successfully. The comparison of the present model and the quark-meson coupling model is addressed."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0706.1349","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/0706.1349/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T15:24:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dko6Q8KMlpGinPEbkNdGhbADNYtI66tCPyEAtJjnfJHmtXBWuq4CUeQ6NyCvySWsXrnKQSDCN5CBFrD45i+PDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T23:01:17.074917Z"},"content_sha256":"4df1f89fd64a682d0c6723ae19ea82d5ca40bb7c7373e11f97c96cef1f5cdc30","schema_version":"1.0","event_id":"sha256:4df1f89fd64a682d0c6723ae19ea82d5ca40bb7c7373e11f97c96cef1f5cdc30"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BUUBTXGSDSNEWPRDREGRZC2XIO/bundle.json","state_url":"https://pith.science/pith/BUUBTXGSDSNEWPRDREGRZC2XIO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BUUBTXGSDSNEWPRDREGRZC2XIO/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-14T23:01:17Z","links":{"resolver":"https://pith.science/pith/BUUBTXGSDSNEWPRDREGRZC2XIO","bundle":"https://pith.science/pith/BUUBTXGSDSNEWPRDREGRZC2XIO/bundle.json","state":"https://pith.science/pith/BUUBTXGSDSNEWPRDREGRZC2XIO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BUUBTXGSDSNEWPRDREGRZC2XIO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:BUUBTXGSDSNEWPRDREGRZC2XIO","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"9b326ab6dca16e61210cbdc1977d91f5f61061cb5ee08822f518d43174397ae9","cross_cats_sorted":[],"license":"","primary_cat":"nucl-th","submitted_at":"2007-06-10T10:57:10Z","title_canon_sha256":"3eb70f371a619c50331509c0118185c2b7c0af2934db5bc9f2b576e1439d3883"},"schema_version":"1.0","source":{"id":"0706.1349","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0706.1349","created_at":"2026-07-04T15:24:18Z"},{"alias_kind":"arxiv_version","alias_value":"0706.1349v1","created_at":"2026-07-04T15:24:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0706.1349","created_at":"2026-07-04T15:24:18Z"},{"alias_kind":"pith_short_12","alias_value":"BUUBTXGSDSNE","created_at":"2026-07-04T15:24:18Z"},{"alias_kind":"pith_short_16","alias_value":"BUUBTXGSDSNEWPRD","created_at":"2026-07-04T15:24:18Z"},{"alias_kind":"pith_short_8","alias_value":"BUUBTXGS","created_at":"2026-07-04T15:24:18Z"}],"graph_snapshots":[{"event_id":"sha256:4df1f89fd64a682d0c6723ae19ea82d5ca40bb7c7373e11f97c96cef1f5cdc30","target":"graph","created_at":"2026-07-04T15:24:18Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/0706.1349/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"An improved quark mass density- dependent model with the non-linear scalar sigma field and the $\\omega$-meson field is presented. We show that the present model can describe saturation properties, the equation of state, the compressibility and the effective nuclear mass of nuclear matter under mean field approximation successfully. The comparison of the present model and the quark-meson coupling model is addressed.","authors_text":"Chen Wu, Ru-Keng Su, Wei-Liang Qian","cross_cats":[],"headline":"","license":"","primary_cat":"nucl-th","submitted_at":"2007-06-10T10:57:10Z","title":"Improved quark mass density- dependent model with quark-sigma meson and quark-omega meson couplings"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0706.1349","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:664a8a1e053e1a0e56b48659d3ebbe53463480017d45eb69436b2c08de38bd02","target":"record","created_at":"2026-07-04T15:24:18Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"9b326ab6dca16e61210cbdc1977d91f5f61061cb5ee08822f518d43174397ae9","cross_cats_sorted":[],"license":"","primary_cat":"nucl-th","submitted_at":"2007-06-10T10:57:10Z","title_canon_sha256":"3eb70f371a619c50331509c0118185c2b7c0af2934db5bc9f2b576e1439d3883"},"schema_version":"1.0","source":{"id":"0706.1349","kind":"arxiv","version":1}},"canonical_sha256":"0d2819dcd21c9a4b3e23890d1c8b57438812b8241c9e667ff4037ee05b17561e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0d2819dcd21c9a4b3e23890d1c8b57438812b8241c9e667ff4037ee05b17561e","first_computed_at":"2026-07-04T15:24:18.385472Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:24:18.385472Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Q2vhj6f7mdYoZ6c8XBB0B5Cgxjy0lXvMT6nbP3KUQxaJDhoRakdOGpuKoALjttqYacOcaVx2IEWLCBhCD/WACw==","signature_status":"signed_v1","signed_at":"2026-07-04T15:24:18.385853Z","signed_message":"canonical_sha256_bytes"},"source_id":"0706.1349","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:664a8a1e053e1a0e56b48659d3ebbe53463480017d45eb69436b2c08de38bd02","sha256:4df1f89fd64a682d0c6723ae19ea82d5ca40bb7c7373e11f97c96cef1f5cdc30"],"state_sha256":"d294b2eef5422e1dea320d030220c0cbf9ad398aeb5deaa32324d55d1a8803bc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"b8EUsuN60QYFn1EQxXGlYtRUVrruLMLhGOSwhC91pJrhuiCo27V2hEaSMobb7bTo+rpQKFzBWq4gnsyBMt+CCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-14T23:01:17.080743Z","bundle_sha256":"fb624b2e32875424f29ac57921a2e41136cfeb0a7727f5c5339b7eb4a07f38dc"}}